/**
 * Created by hanshaojie on 2019/3/11.
 */

.content h3{
    font-weight: bold;
    text-align:center;
    padding: 50px 0;
    font-size: 18px;
}
.box{
    width: 300px;
    height: 300px;
    margin: 0 auto;
    border: 3px solid #7d4d14;
    position: relative;
}
.box li{
    float: left;
    width: 100px;
    height: 100px;
    border: 2px solid #7d4d14;
    box-sizing: border-box;
    text-align: center;
    line-height: 100px;
    font-size: 18px;
    font-weight: bold;
    background: rgba(125,77,20,.5);
}
.start{
    width: 200px;
    height: 40px;
    background: #7d4d14;
    box-shadow: 0 3px 3px #7d4d14;
    margin: 20px auto;
    display: block;
    transition: box-shadow .5s;
    color: #ffffff;
}
.start:hover{
    box-shadow: 0 3px 3px #000;
}